Answer:
For a contraction to occur there must first be a stimulation of the muscle in the form of an impulse (action potential) from a motor neuron (nerve that connects to muscle). Note that one motor neuron does not stimulate the entire muscle but only a number of muscle fibres within a muscle.
Explanation:
Answer:
an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
Explanation:
Answer:
These characteristics are cellular organization , reproduction , metabolism , homeostasis , heredity , response to stimuli , growth and development, and adaptation through evolution.
Explanation:
<span>observations on the outcomes of breeding experiments. </span>
